Beatus Petrus : inni medievali latini - Rezza, Dario. (OLS)http://semarc/name/15348 (s.n.],, 2003)
Keywords: Inni religiosi latini - Antologie. (OLS)http://semarc/subject/15044; Inni - Liturgia latina - Repertori. (OLS)http://semarc/subject/1837; Inni religiosi - Antologie. (OLS)http://semarc/subject/17096